Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have a networking problem with KVM.

There is only one VM on the server and port speed is 100 megabits per second

But maximum download rate is about 1 megabytes per second and expected to be 10mb.

I use virtio and drivers are installed and loaded into kernel.

I tried other NICs but no change and I use bridge networking on the host.

so how to fix this slow performance?

share|improve this question
1  
Are you using bridged networking or something else? What does iperf show? –  Michael Hampton Sep 13 '12 at 14:53
    
Thanks, yes I setup bridge networking with KVM, what exactly do you want from iperf? –  Zim3r Sep 13 '12 at 15:43
add comment

1 Answer

up vote 1 down vote accepted

If it's possible, check the link speed on switch. It might be set to 10 Mbit/s (10BASE-T). Try connecting directly to server using cross-over cable. If that also fails, the problem is somewhere in configuration/server performance.

share|improve this answer
    
Thanks, anyway I'll try to call provider. –  Zim3r Sep 13 '12 at 15:43
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.